Shirt collar



FIG. 1 is a front perspective view of a shirt collar showing my newdesign, the broken lie showing of the shirt is for illustrative purposesonly and forms no part of the claimed design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a top perspective view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a side elevational view thereof, the oppsite side is a mirrorimage; and,

FIG. 6 is a rear perspective view thereof.

The ornamental design for a shirt collar, as shown and described.